A high-response-speed deburring machine for square and rectangular billets and its design method

Abstract

This invention relates to a high-response-speed deburring machine for square and rectangular billets and its design method, belonging to the field of metallurgical continuous casting technology. It includes a support structure, on which a frame structure is rotatably mounted, and a transverse moving structure is mounted. A lifting structure is mounted on the lower side of the frame structure away from the transverse moving structure. This high-response-speed deburring machine for square and rectangular billets adjusts the angle of the guide rail by a lifting cylinder, thereby adjusting the vertical height of the deburring scraper within the guide rail, so that the vertical height of the deburring scraper matches the height of the billet. The transverse moving cylinder, parallel to the guide rail, drives the deburring scraper to remove burrs from the billet. By optimizing the mechanical structure and hydraulic drive system design of the deburring machine, a burr removal device adapted to multiple billet specifications has been innovatively developed.

Description

Technical Field

[0001] This invention relates to the field of metallurgical continuous casting technology, specifically to a high-response-speed deburring machine for square and rectangular billets and its design method. Background Technology

[0002] Against the backdrop of high-quality development in the steel industry, the industry's requirements for billet quality and production efficiency are becoming increasingly stringent. The efficiency and effectiveness of billet burr removal have become key factors affecting the operation of continuous casting production lines. In continuous casting production, the iron oxide nodules formed at the bottom of the billet after flame cutting can easily cause problems such as damage to conveying equipment and a decline in the quality of rolled products.

[0003] Existing equipment suffers from slow response speed, poor adaptability, and high maintenance costs, making it difficult to meet the demand for online and efficient deburring of multi-specification cast billets. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a high-response-speed deburring machine for square and rectangular billets and its design method, so as to solve the problems of the prior art.

[0005] This invention is achieved through the following technical solution:

[0006] A high-response-speed deburring machine for square and rectangular billets includes a support structure, a frame structure rotatably mounted on the support structure, a transverse hydraulic cylinder mounted on the frame structure, and a lifting hydraulic cylinder mounted on the lower side of the frame structure away from the transverse hydraulic cylinder.

[0007] The transverse cylinder has a cylinder trunnion in the middle, which is installed in the cylinder mounting seat on the frame structure. A transverse cylinder connector is installed at the front of the transverse cylinder. A transverse support is slidably connected inside the frame structure. The transverse support is rotatably connected to the transverse cylinder connector. Symmetrically distributed transverse guide wheels are rotatably connected to the transverse support. A scraper mounting bracket is installed at the upper end of the transverse support, and a deburring scraper is installed on the scraper mounting bracket.

[0008] Preferably, the support structure includes a top fixing frame, a fixed support is installed inside the top fixing frame, and a swing shaft pressure plate is installed inside the fixed support.

[0009] Preferably, the frame structure includes a rotating mounting bracket rotatably mounted inside the swing shaft pressure plate, a symmetrically distributed guide rail is mounted on the rotating mounting bracket, a transverse hydraulic cylinder mounting seat is mounted on the lower side of the guide rail near the rotating mounting bracket, and a lifting hydraulic cylinder mounting bracket is mounted on the other side of the guide rail.

[0010] Preferably, the guide rail has a groove, the transverse support slides with the guide rail, and the transverse guide wheel rolls in the groove of the guide rail.

[0011] Preferably, the lifting structure includes a bottom fixing frame, a lifting cylinder, and a lifting cylinder connector. The bottom fixing frame is installed on the ground base by anchor bolts. The lifting cylinder is rotatably mounted on the upper side of the bottom fixing frame. The lifting cylinder connector is installed on the lifting cylinder and is rotatably connected to the lower side of the lifting cylinder mounting frame.

[0012] This invention also provides a design method for a high-response-speed deburring machine for square and rectangular billets:

[0013] The hydraulic system features independent hydraulic circuits for the lateral movement cylinder and the lifting cylinder. Each circuit includes an inlet pipe, a return pipe, and an outlet pipe. The hydraulic valve assembly precisely controls the on / off state, oil pressure, and oil flow, thereby achieving precise regulation of the cylinder extension / retraction speed and stroke. This ensures the accuracy of the scraper's lateral movement and lifting action, contributing to the equipment's high response speed. Especially when removing burrs from the billet head, the lifting cylinder requires rapid movement to ensure effective deburring; its speed must exceed the billet's moving speed when removing burrs from the billet head. The flow rate is twice that of the billet. Therefore, the control circuit of the transverse hydraulic cylinder adopts differential control. When the hydraulic cylinder is pushed out, the rodless chamber requires a large flow rate. Valves ① and ② are energized and the hydraulic cylinder is pushed out quickly, which not only meets the speed requirements but also reduces the flow rate of the system. When removing the billet tail, the lifting cylinder moves in the opposite direction to the billet. Valves ① and ③ are energized and the hydraulic cylinder retracts with a small flow rate, which can drive the cutter head to remove the burrs at the tail of the billet. The two chambers of the hydraulic cylinder are equipped with relief valves to reduce system impact. The energy storage device plays a role in supplementing the instantaneous flow rate and ensuring the stability of the burr removal operation.

[0014] The beneficial effects of this invention are as follows:

[0015] This high-response-speed deburring machine for square and rectangular billets adjusts the angle of the guide rail using a lifting cylinder, thereby adjusting the vertical height of the deburring scraper within the guide rail. This ensures the vertical height of the deburring scraper matches the height of the billet. A transverse hydraulic cylinder parallel to the guide rail drives the deburring scraper to remove burrs from the billet. By optimizing the mechanical structure and hydraulic drive system design of the deburring machine, a multi-specification billet-compatible deburring device has been innovatively developed. The entire device is integrated into the billet discharge roller frame, consisting of a support structure, frame structure, transverse and lifting actuators, and a hydraulic drive system. Through the coordinated action of swinging, transverse, and lifting movements, efficient removal of billet burrs is achieved. The equipment boasts advantages such as fast response speed, stable and reliable operation, simple structure, and low maintenance. It can accurately remove iron oxide nodules and burrs from the bottom of the billet, significantly improving the quality of the finished billet. At the same time, it effectively avoids damage to the billet conveying rollers caused by burrs, extending the service life of the equipment. Ultimately, it enhances the continuity, stability, and economy of continuous casting production, fully meeting the stringent requirements of the steel industry for billet quality and production efficiency.

[0016] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure connection of the present invention;

[0018] Figure 2 This is a schematic diagram showing the connection between the support structure and the frame structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection of the transverse hydraulic cylinder of the present invention;

[0020] Figure 4 This is a schematic diagram of the deburring scraper connection of the present invention;

[0021] Figure 5 This is a schematic diagram of the lifting structure connection of the present invention;

[0022] Figure 6 This is a schematic diagram of the hydraulic drive principle of the deburring machine of the present invention.

[0023] In the diagram: 1. Support structure; 11. Top fixing frame; 12. Fixed support; 13. Swing shaft pressure plate;

[0024] 2. Frame structure; 21. Rotary mounting bracket; 22. Guide rail; 23. Transverse hydraulic cylinder mounting base; 24. Lifting hydraulic cylinder mounting bracket;

[0025] 3. Lateral movement structure; 31. Lateral movement cylinder; 32. Cylinder trunnion; 33. Lateral movement cylinder connector; 34. Lateral movement bracket; 35. Lateral movement guide wheel; 36. Scraper mounting bracket; 37. Deburring scraper;

[0026] 4. Lifting structure; 41. Bottom fixing frame; 42. Lifting cylinder; 43. Lifting cylinder connector. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0032] Please see Figure 1 Of Figure 5 This invention provides a technical solution: a high-response-speed deburring machine for square and rectangular billets. It includes a support structure 1, a frame structure 2 rotatably mounted on the support structure 1, a transverse hydraulic cylinder 3 mounted on the frame structure 2, and a lifting hydraulic cylinder 4 mounted on the lower side of the frame structure 2 away from the transverse hydraulic cylinder 3.

[0033] Among them, the transverse hydraulic cylinder 3 has a cylinder trunnion 32 in the middle, the cylinder trunnion 32 is installed in the cylinder mounting seat 23 on the frame structure 2, the transverse hydraulic cylinder 31 has a transverse hydraulic cylinder connector 33 installed at the front, the transverse support 34 is slidably connected in the frame structure 2, the transverse support 34 is rotatably connected to the transverse hydraulic cylinder connector 33, the transverse guide wheels 35 are symmetrically distributed on the transverse support 34, the upper end of the transverse support 34 is equipped with a scraper mounting bracket 36, and the scraper mounting bracket 36 is equipped with a deburring scraper 37.

[0034] The support structure 1 includes a top fixing frame 11, a fixed support 12 is installed inside the top fixing frame 11, and a swing shaft pressure plate 13 is installed inside the fixed support 12.

[0035] The frame structure 2 includes a rotating mounting bracket 21 rotatably mounted in the swing shaft pressure plate 13. Symmetrically distributed guide rails 22 are mounted on the rotating mounting bracket 21. A transverse hydraulic cylinder mounting seat 23 is mounted on the lower side of the guide rail 22 near the rotating mounting bracket 21. A lifting hydraulic cylinder mounting bracket 24 is mounted on the other side of the guide rail 22.

[0036] The guide rail 22 has a groove, the transverse support 34 slides with the guide rail 22, and the transverse guide wheel 35 rolls in the groove of the guide rail 22.

[0037] The lifting structure 4 includes a bottom fixing frame 41, a lifting cylinder 42, and a lifting cylinder connector 43. The bottom fixing frame 41 is installed on the ground base by anchor bolts. The lifting cylinder 42 is rotatably installed on the upper side of the bottom fixing frame 41. The lifting cylinder connector 43 is installed on the lifting cylinder 42 and is rotatably connected to the lower side of the lifting cylinder mounting frame 24.

[0038] This invention also provides a design method for a high-response-speed deburring machine for square and rectangular billets:

[0039] The hydraulic system features independent hydraulic circuits for the lateral movement cylinder and the lifting cylinder. Each circuit includes an inlet pipe, a return pipe, and an outlet pipe. The hydraulic valve assembly precisely controls the on / off state, oil pressure, and oil flow, thereby achieving precise regulation of the cylinder extension / retraction speed and stroke. This ensures the accuracy of the scraper's lateral movement and lifting action, contributing to the equipment's high response speed. Especially when removing burrs from the billet head, the lifting cylinder requires rapid movement to ensure effective deburring; its speed must exceed the billet's moving speed when removing burrs from the billet head. The flow rate is twice that of the billet. Therefore, the control circuit of the transverse hydraulic cylinder adopts differential control. When the hydraulic cylinder is pushed out, the rodless chamber requires a large flow rate. Valves ① and ② are energized and the hydraulic cylinder is pushed out quickly, which not only meets the speed requirements but also reduces the flow rate of the system. When removing the billet tail, the lifting cylinder moves in the opposite direction to the billet. Valves ① and ③ are energized and the hydraulic cylinder retracts with a small flow rate, which can drive the cutter head to remove the burrs at the tail of the billet. The two chambers of the hydraulic cylinder are equipped with relief valves to reduce system impact. The energy storage device plays a role in supplementing the instantaneous flow rate and ensuring the stability of the burr removal operation.

[0040] Working principle:

[0041] After the billet is processed by the flame cutting machine, it is conveyed to the billet exit roller conveyor for deburring.

[0042] Head burr removal: After the billet head passes the preset detection element, the hydraulic drive system controls the lifting cylinder 42 to extend, driving the frame structure 2 upward through the vertical cylinder joint 43, so that the deburring scraper 37 accurately reaches the vertical height matching the bottom of the billet. Subsequently, in order to remove the head burr with a response speed twice that of the frame structure, which is higher than the billet moving speed, the hydraulic system controls the transverse cylinder 31 to enter the differential working mode: the relevant hydraulic valve group, valve ① and valve ② are simultaneously energized, causing the hydraulic cylinder to quickly extend, driving the transverse cylinder to drive the transverse support 34 and the deburring scraper 37 to extend at high speed, completing the rapid removal of the head burr; after completion, the lifting cylinder 42 retracts, and the frame structure 2 resets.

[0043] Deburring at the tail: After the tail of the billet passes the preset detection element, the lifting cylinder 42 extends again, adjusting the deburring scraper 37 to the working height; at this time, the hydraulic system controls the transverse cylinder 31 to retract at a normal speed, and the corresponding valves ① and ③ are energized. The hydraulic cylinder retracts with a small flow rate, which drives the deburring scraper 37 to retract horizontally and remove the tail burrs; after the operation is completed, all cylinders are reset, waiting for the next billet.

[0044] Throughout the process, both chambers of the hydraulic cylinder in the hydraulic system are equipped with relief valves to reduce system impact, while the accumulator ensures instantaneous flow, thereby enabling high-frequency, high-response continuous operation.

[0045] Through modular mechanical structure design, the components are tightly connected and compactly arranged. The only core vulnerable part of the equipment is the scraper, which is easy to replace. All other components adopt high-strength and high-stability design standards, significantly reducing the frequency and cost of daily maintenance. The system uses a hydraulic drive system to precisely control the cylinder movement in a closed loop, enabling rapid adjustment of the scraper position. The equipment has a fast response speed and can adapt to the burr removal needs of various billet sizes, including small, large, and rectangular billets, perfectly matching the continuous operation rhythm of the continuous casting production line.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-response-speed deburring machine for square and rectangular billets, comprising a support structure (1), a frame structure (2) rotatably mounted on the support structure (1), a transverse hydraulic cylinder (3) mounted on the frame structure (2), and a lifting hydraulic cylinder (4) mounted on the lower side of the frame structure (2) away from the transverse hydraulic cylinder (3), characterized in that: in, The transverse cylinder (3) has a cylinder trunnion (32) in the middle. The cylinder trunnion (32) is installed in the cylinder mounting seat (23) on the frame structure (2). The transverse cylinder (31) has a transverse cylinder connector (33) installed at the front. The transverse support (34) is slidably connected in the frame structure (2). The transverse support (34) is rotatably connected to the transverse cylinder connector (33). The transverse support (34) has symmetrically distributed transverse guide wheels (35) rotatably connected on the transverse support (34). The upper end of the transverse support (34) is equipped with a scraper mounting bracket (36). The scraper mounting bracket (36) is equipped with a deburring scraper (37).

2. The high-response-speed deburring machine for square and rectangular billets according to claim 1, characterized in that: The support structure (1) includes a top fixing frame (11), a fixed support (12) is installed inside the top fixing frame (11), and a swing shaft pressure plate (13) is installed inside the fixed support (12).

3. The high-response-speed deburring machine for square and rectangular billets according to claim 2, characterized in that: The frame structure (2) includes a rotating mounting bracket (21) rotatably mounted in the swing shaft pressure plate (13). Symmetrically distributed guide rails (22) are mounted on the rotating mounting bracket (21). A transverse hydraulic cylinder mounting seat (23) is mounted on the lower side of the guide rail (22) near the rotating mounting bracket (21). A lifting hydraulic cylinder mounting bracket (24) is mounted on the other side of the guide rail (22).

4. A high-response-speed deburring machine for square and rectangular billets according to claim 3, characterized in that: The guide rail (22) has a groove, the transverse support (34) slides with the guide rail (22), and the transverse guide wheel (35) rolls in the groove of the guide rail (22).

5. A high-response-speed deburring machine for square and rectangular billets according to claim 3, characterized in that: The lifting structure (4) includes a bottom fixing frame (41), a lifting cylinder (42) and a lifting cylinder connector (43). The bottom fixing frame (41) is installed on the ground base by anchor bolts. The lifting cylinder (42) is rotatably installed on the upper side of the bottom fixing frame (41). The lifting cylinder connector (43) is installed on the lifting cylinder (42). The lifting cylinder connector (43) is rotatably connected to the lower side of the lifting cylinder mounting frame (24).

6. A design method for a high-response-speed deburring machine for square and rectangular billets, applied to a high-response-speed deburring machine for square and rectangular billets as described in any one of claims 1-5, characterized in that: The hydraulic system features independent hydraulic circuits for the lateral movement cylinder and the lifting cylinder. Each circuit includes an inlet pipe, a return pipe, and an outlet pipe. The hydraulic valve assembly precisely controls the on / off state, oil pressure, and oil flow, thereby achieving precise regulation of the cylinder extension / retraction speed and stroke. This ensures the accuracy of the scraper's lateral movement and lifting action, contributing to the equipment's high response speed. Especially when removing burrs from the billet head, the lifting cylinder requires rapid movement to ensure effective deburring; its speed must exceed the billet's moving speed when removing burrs from the billet head. The flow rate is twice that of the billet. Therefore, the control circuit of the transverse hydraulic cylinder adopts differential control. When the hydraulic cylinder is pushed out, the rodless chamber requires a large flow rate. Valves ① and ② are energized and the hydraulic cylinder is pushed out quickly, which not only meets the speed requirements but also reduces the flow rate of the system. When removing the billet tail, the lifting cylinder moves in the opposite direction to the billet. Valves ① and ③ are energized and the hydraulic cylinder retracts with a small flow rate, which can drive the cutter head to remove the burrs at the tail of the billet. The two chambers of the hydraulic cylinder are equipped with relief valves to reduce system impact. The energy storage device plays a role in supplementing the instantaneous flow rate and ensuring the stability of the burr removal operation.

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